Problems subclassing netCDF3.Dataset

[dopplershift]

From merckelb...@yahoo.com on February 18, 2010 11:15:16

Hi,

I'm trying to generate a subclass of netCDF3.Dataset, basically by doing

import netCDF3

class Mynetcdf(netCDF3.Dataset):
def init(self,somelist):
netCDF3.Dataset.ini(self,'tmp.nc','w')
self.somelist=somelist

alist=['a','b','c']

mncdf=Mynetcdf(alist)

Now, mncdf.somelist is in fact a string!

I'm using python 2.6 on ubuntu 9.04 and version netCDF 0.9

Any idea what goes wrong here?

Thanks a lot!

Lucas Merckelbach

Original issue: http://code.google.com/p/netcdf4-python/issues/detail?id=38

[dopplershift]

From whitaker.jeffrey@gmail.com on February 18, 2010 10:35:03

Lucas: You are setting an netcdf dataset attribute when you do
self.somelist=somelist. The list of strings is being cast to a string, and a string
dataset attribute is added to the file.

[mac28:~/python/netcdf4-python] jwhitaker% ncdump tmp.nc
netcdf tmp {

// global attributes:
:somelist = "abc" ;
}

If you want to create a python attribute that won't be written to the netcdf file, do

self.dict['somelist']=somelist

-Jeff

[dopplershift]

From merckelb...@yahoo.com on February 19, 2010 10:43:10

Hi Jeff,

Thanks a lot. That works!

Lucas

[dopplershift]

From whitaker.jeffrey@gmail.com on February 25, 2014 18:04:09

Status: Fixed